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Plaxico, James S.: Optimum allocation of research resources in a dynamic agriculture. S. 1373-1382, Disk. S. 1383-1386 …Claar, Jack: How to keep extension resources properly allocated to a dynamic agriculture. S. 1387-1398, Disk. S. 1398-1401 …
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Black, John D.: Resources needed in American agriculture. S. 1074-1086, Disk. S. 1086-1089: Karl Brandt …
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